MDS 2141A01, Rev. A i
TABLE OF CONTENTS
CHAPTER 1—GENERAL
INTRODUCTION ------------------------------------------------------------------------------------------------------ 1-1
APPLICATIONS-------------------------------------------------------------------------------------------------------- 1-1
TERMS “ANALOG” AND “DIGITAL” ---------------------------------------------------------------------------- 1-2
MDS 4310 MODULATION TECHNIQUES ----------------------------------------------------------------------- 1-2
MICROCONTROLLER FEATURES ------------------------------------------------------------------------------- 1-2
SOFT CARIER DEKEY ----------------------------------------------------------------------------------------------- 1-3
CONTROL INPUTS AND OUTPUTS ------------------------------------------------------------------------------ 1-3
MODEL NUMBER CODES -------------------------------------------------------------------------- 1-4
MAIN PRINTED CIRCUIT BOARD MODELS -------------------------------------------------- 1-4
SPECIFICATIONS ----------------------------------------------------------------------------------------------------- 1-5
OPTIONAL EQUIPMENT, ACCESSORIES and CERTIFICATIONS -------------------------------------- 1-10
Special Certifications--------------------------------------------------------------------------------- 1-10
1200 BPS Bell 202T Modem------------------------------------------------------------------------ 1-11
4800 BPS Modem------------------------------------------------------------------------------------- 1-11
9600 BPS Modem------------------------------------------------------------------------------------- 1-11
Audio Processing Module---------------------------------------------------------------------------- 1-11
Order Wire Module----------------------------------------------------------------------------------- 1-11
Remote Maintenance Module (Internal)—P/N 03-1958A01 ----------------------------------- 1-11
Hand-Held Terminal---------------------------------------------------------------------------------- 1-12
RS-232 to RS-422 Converter Assembly—P/N 01-2358A01------------------------------------ 1-12
TTL to RS-232 Converter Assembly--------------------------------------------------------------- 1-12
CHAPTER 2—INSTALLATION
OVERVIEW ------------------------------------------------------------------------------------------------------------- 2-1
SURFACE MOUNTING ---------------------------------------------------------------------------------------------- 2-2
EXTERNAL CONNECTIONS --------------------------------------------------------------------------------------- 2-4
ANTENNA Connector --------------------------------------------------------------------------------- 2-4
DC IN (Power) Connector ----------------------------------------------------------------------------- 2-4
INTERFACE Connector ------------------------------------------------------------------------------- 2-4
INTERFACE Connector Pin Functional Descriptions--------------------------------------------- 2-7
FRONT PANEL INDICATORS------------------------------------------------------------------------------------ 2-11
TRANSCEIVER CONFIGURATION JUMPERS --------------------------------------------------------------- 2-12
J14—Receiver Audio Output Phase ---------------------------------------------------------------- 2-13
J16—Full Duplex Option Connector--------------------------------------------------------------- 2-13
MODEMS—GENERAL--------------------------------------------------------------------------------------------- 2-13
Introduction-------------------------------------------------------------------------------------------- 2-13
The Role of the Modem ------------------------------------------------------------------------------ 2-14
RTS and CTS Signals ------------------------------------------------------------------------------- 2-14
DCD Signal -------------------------------------------------------------------------------------------- 2-14
POWER REQUIREMENTS----------------------------------------------------------------------------------------- 2-14
ANTENNAS AND FEEDLINES----------------------------------------------------------------------------------- 2-15
Antenna Selection and Mounting ------------------------------------------------------------------- 2-15
Feedline Selection------------------------------------------------------------------------------------- 2-16
Feedline Installation ---------------------------------------------------------------------------------- 2-17